Does anyone remember the amazing backscatter tech by the UW kids (https://www.jeevawireless.com/ https://www.jeevawireless.com/)? I've been waiting on them for

Does anyone remember the amazing backscatter tech by the UW kids (https://www.jeevawireless.com/ https://www.jeevawireless.com/)? I've been waiting on them for years now. They were supposed to be to market by now with a $0.25 chip that does 2.4GHz at 1/10,000 of the power. They have reliable functional demos doing long range transmission using 59 micro watts. They were also working on a battery free emergency cell phone.